干旱区生态环境知识资源中心(Arid): 不同人工草地对干旱区弃耕地土壤理化性质及微生物数量的影响

Arid

	不同人工草地对干旱区弃耕地土壤理化性质及微生物数量的影响
其他题名	Effect of Different Artificial Grassland on Soil Physico-chemical Properties and Microbial Quantities of Abandoned Land in Arid Area
	贾倩民; 陈彦云; 杨阳; 陈科元; 韩润燕
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2014
卷号	28 期号:1 页码:178-182,220
中文摘要	在宁夏干旱区弃耕地种植6种牧草建植人工草地,对表层土壤理化性质、土壤养分含量及微生物数量进行研究,探讨不同人工草地对弃耕地土壤理化性质及微生物数量的影响。结果表明:各人工草地的土壤容重、pH、全盐均低于撂荒地,其中全盐含量显著降低;各禾本科草地保水蓄水能力均强于豆科草地,以披碱草的效果最佳;各人工草地的土壤有机质、全氮、速效氮和速效磷含量均显著高于撂荒地,且豆科草地提高土壤有机质、全氮、全磷、速效氮含量的效果强于禾本科草地,效果大小为紫花苜蓿>沙打旺 > 草木樨;禾本科草地提高速效磷、速效钾含量的效果强于豆科草地,效果大小为披碱草>扁穗冰草>蒙古冰草;各人工草地表层土壤细菌、真菌和放线菌数量均显著高于撂荒地;各豆科草地细菌数量均显著高于各禾本科草地,而真菌数量较禾本科草地少,紫花苜蓿和沙打旺草地细菌、放线菌数量均显著高于其他人工草地;禾本科中披碱草草地细菌数量显著多于扁穗冰草和蒙古冰草;土壤水分与放线菌、真菌数量呈显著或极显著正相关;土壤全盐与放线菌、真菌数量呈极显著负相关;土壤有机质、全氮、全磷、速效氮、速效磷含量与细菌、放线菌数量呈显著或极显著正相关,土壤全钾、速效磷、速效钾含量与真菌呈极显著正相关。
英文摘要	Six grasses were planted and the topsoil physico-chemical properties and microbial quantities were compared. The results showed that soil bulk density,pH, total salt of artificial grasslands were lower than that of wasteland and total salt decreased significantly. Water conservation ability of gramineae grasslands was stronger than legume grasslands, and Elymus dahuricus grassland was best. Soil organic matter, total nitrogen, available nitrogen and available phosphorus contents of artificial grasslands were significantly higher than that of wasteland and legume grasslands which could improve soil organic matter, total nitrogen, total phosphorus and available nitrogen, the order of effect was Medicago sativa>Astragalus adsurgens> Melilotus suaveolens. The improvement of available phosphorus and available potassium of gramineae grasslands was stronger than that of legume grasslands. The effect size was Elymus dahuricus > Agropyron cristatum > Agropyron mongolicum. The quantities of bacteria, actinomycetes and fungi in soil of artificial grasslands were higher than those of wasteland. The bacteria quantity of legume grasslands were higher than those of gramineae grasslands, but fungi quantity were opposite. The amount of bacteria and actinomyces of Medicago sativa grassland and Astragalus adsurgens grassland were significantly more than those of other artificial grasslands. The amount of bacteria in Elymus dahuricus grassland were more than those of Agropyron cristatum and Agropyron mongolicum. The soil moisture had positive correlation with the amount of actinomyces and fungi and the soil total salt had negative correlation with the amount of actinomyces and fungi. The amount of bacteria and actinomyces showed positive correlation with soil organic matter, total nitrogen, total phosphorus, available nitrogen and available phosphorus. The amount of fungi showed positive correlation with soil total potassium, available phosphorus and available potassium.
中文关键词	干旱区 ; 弃耕地 ; 土壤理化性质 ; 微生物
英文关键词	arid area abandoned land soil physico-chemical properties microorganism
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5090166
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231761
作者单位	宁夏大学,西部生态与生物资源开发联合研究中心, 西北退化生态系统恢复与重建教育部重点实验室, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	贾倩民,陈彦云,杨阳,等. 不同人工草地对干旱区弃耕地土壤理化性质及微生物数量的影响[J]. 宁夏大学,2014,28(1):178-182,220.
APA	贾倩民,陈彦云,杨阳,陈科元,&韩润燕.(2014).不同人工草地对干旱区弃耕地土壤理化性质及微生物数量的影响.水土保持学报,28(1),178-182,220.
MLA	贾倩民,et al."不同人工草地对干旱区弃耕地土壤理化性质及微生物数量的影响".水土保持学报 28.1(2014):178-182,220.